Roller-bearing.



' No. 739,521. PATENTED SEPT. 22, 1903.

- R. TRBVEAL' I ROLLER BEARING. APPLIGATIOH FILED 001'.3, 1902.;

H0 MODEL.

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QM; 3W 7 liw i I No. 739,521. I UNITED STATES Patented September22, 1903. I

PATENT 'rricn.

RICHARD TREVEAL, OF AUBURN, new roan, nssrenon TO DAVID M. DUNNING, 5a., or AUBURN, NEW YORK.

ROLLER-BEARING.

SPECIFICATION forming part of Letters Patent No. 739,521, dated September 22, 1903.

Application filed October 3, 1902. Serial No. 125,726. (No model.)

To all whom it may concern:

Be it known that I, Brennan TRnvEAL, a citizen of the United States, residing at Auburn, in the county of Cayuga and State of New York, have invented an Improvement in Roller-Bearings, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

Myinvention consists in an improved form of roller-bearings particularly adapted to provide a durable and efficient bearing-surface capable of withstanding heavy pressures.

My invention will be best understood from the following description and accompanying illustrationof one specific embodiment of the same, while its scope will be particularlypointed out in the appended claims.

The drawing shows a longitudinal'view, partially in section, of one form of my improved bearing, representing the cooperating parts in their working positions.

In the drawing, a represents the inner hearing member, which in this instance is shown as integral with the extension h, which may form part of a vehicle-axle or other similar structuralportion. This inner bearing mem her a is provided at suitably-selected intervals along its bearing-surface with raised portions 0 c, forming separated surfaces of contact, adapted to engage the series of rolls d d, which are placed in any suitable way about the periphery of the said innerbearing member. In the device which I have selected for illustrating my invention I have shown four such raised separated contacting surfaces of a generalcurvilinear outline; but it is evident that I may employ any number of such contacting surfaces, and the bearingmember maybe fashioned in any desired Way or shape to produce the same. The rolls dare held in position about the bearing member by the retaining-collar e, suitably formed on the member 1), and the removable retaining-collar f at the opposite end of the rolls, which engages with the threadedportion of the inner bearing memberend and'rests against a suitable shoulder thereon. The rolls are provided with necked-down portions 9 attheir extreme ends, adapted to fall within these two retaining members when the same are in position, by which they are normally held within a fixed circumferential distance from the inner bearing member. The check-nut his employed to lock the retaining-collarf in position and prevent the same from working loose, the latter being provided with a slot-c in its retaining-wall of asufticient width to permit withdrawal of anyone roll by sliding' the necked-down portion of the same therethrough. By this means any one or all of the rolls may be withdrawn from posit-ion for any desired purpose.

I have here shown an outer bearing member consisting of the rotatable sleeve j, engaging at its inner periphery with the rolls d and prevented from longitudinal movement thereupon by the shoulder it upon the check-nut h.

At Z I have shown a lug or spline extending throughout aportion of the length of the outer bearing-sleeve, whereby the same may befixedly securedto that portion of the structure to which it is intended to be attachedsuch, for example, as the wheel of a vehicle in this latter instance the entire sleeve being forced into the same and prevented from rotating relativelythereto by means of the said lug. It is evident that this sleeve maybe of any desired form or suitable construction, according to'the use to which this bearing is applied, and it is also evident that it may or may not have a bearing-surface similar to that of the innerbearing member.

I prefer to locate the contacting surfaces unsymmetrically about a line passing through the center of the hearing, so that any individual roll may be removed from the bearing and replaced in a reverse position to present fresh portions of its surface for hearing contact with the inner bearing member, and in the bearing illustrated I have so shown the relation of parts that this result is obtained. By this means the life of each individual roll is prolonged. The recessed portions intermediate between each bearing-surface on the inner bearing member will be found to provide pockets or receptacles for grit, dirt, or

of separated bearing-snrfaces such, for example, as I have illustrated-maintains the rolls clean and reduces the friction to a minimum.

My invention, it will be obvious, is not limited to the specific structure shown, but may be changed in many details without departing from the spirit thereof. It is not necessary that this particular form or shape of any of the members shown should be employed;

drical bearing-rolls contacting with the inner surface of said shell and the convex bearing portions on said inner member, said inner member having other portions intermediate said bearing portions out of contact with said rolls.

3. A bearing comprising an outer cylindrical bearing-shell, an inner bearing member having a plurality of parallel convex separated bearing portions and a plurality of ey lindrical rolls contacting with the inner surface of said shell and the convex bearing por= tions on said inner member, said inner member having other portions intermediate said bearing portions out of contact with said rolls.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RICHARD TREVEAL.

Witnesses:

A. TJSTUPP,

K. L. SIMoNs. 

